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AKG DIFFEROID CM311 A, Manual, Page: 2 / 4

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AKG DIFFEROID CM311 A Manual Download Page 2

 

 

 
 
 
 
 
 

Fig. 1 

 

Frequency Response 

 

+15 

+10 

+5 

dB 0 

-5 

-10 

-15 

-20 

-25 

-30 
-35 

 

 

0˚, 1.375" 

 
 
 

 

0˚ 2' 

 

120˚, 2' 

20 

100 

1K 

 

Frequency in Hz 

 
 
 
 
 
 
 
 
 
 

 

Fig. 3 

 
 
 
 
 
 
 
 

MIC 

 

 
 
 

 

Fig. 2 

 

Polar  Response

 
 
 
 

300˚ 

 
 

 

270˚ 

 
 

 

240˚ 

 

330˚ 

 

0˚ 

FRONT

 

-0

-5

-10

-15

-20

10K  20K 

 

 
 

210˚ 

 

 

REAR 

180

Fig. 4 

 

Response 

 

30˚ 

FRONT 

0 

5 

10 

15 

20 

 
 
 
 

60˚ 

 
 

 

90˚ 

 
 

 

120˚ 

REAR 

180˚ 

 

 
 

150˚ 

1000 Hz 

300 Hz 

6000 Hz 

Summary of Contents for DIFFEROID CM311 A

Page 1: ...tret condenser Frequency response typical 50 Hz to 17 000 Hz see Fig 1 Polar pattern Cardioid see Fig 2 Impedance CM311 A 75 ohms balanced CM311 AESH and CM311 L 6kilohms unbalanced Recommended load impedance CM311 A 1000 ohms or greater CM311 AESH and CM311 L 10 kilohms Open circuit sensitivity typical close talking CM311 A 4 mV Pa 48 dB re 1V Pa CM311 AESH and CM311 L 1 25 mV Pa 58 dB re 1V Pa P...

Page 2: ...0 5 10 15 20 25 30 35 0 1 375 0 2 120 2 20 100 1K Frequency in Hz Fig 3 MIC Fig 2 Polar Response 300 270 240 330 0 FRONT 0 5 10 15 20 10K 20K 210 REAR 180 Fig 4 Response 30 FRONT 0 5 10 15 20 60 90 120 REAR 180 150 1000 Hz 300 Hz 6000 Hz ...

Page 3: ...ry on Momentary off as supplied To change the switch operation open the belt pack case by removing the three screws Set the switch as shown below The LED lights when the mic is on Architects and Engineers Specifications The microphone shall be the AKG Crown Model CM311 A or equivalent The microphone shall be a head worn noise cancelling cardioi The axis The headband thumbscre Mode pack permanentl ...

Page 4: ...m CM CM CM311 L 1 CM311 A Schematic ACOUSTICS GMBH LAXENBURGER STRASSE 254 1230 VIENNA AUSTRIA AKG ACOUSTICS U S SERVICE 24950 GROVE VIEW ROAD MORENO VALLEY CA 2015 HARMAN International Industries Incorporated All rights reserved AKG is a trademark of AKG Features specifications and appearance are subject to change without notice CM311 A CM311 AESH CM311 L TRIA D MORENO VALLEY CA 92551 U S A AKG A...

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